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EG4 48V PowerPro LiFePO4 Battery (14.3kWh-85.8kWh) + FlexBoss18 13kW 48V Split Phase AC Hybrid Inverter
by EG4

EG4 48V PowerPro LiFePO4 Battery (14.3kWh-85.8kWh) + FlexBoss18 13kW 48V Split Phase AC Hybrid Inverter

SKU: K0102
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$9,549.99
$9,549.99 - $45,209.86
$9,549.99
$7,639.99
$7,639.99 - $36,167.89
$7,639.99
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Bundle Options: 1 x PowerPro Battery + FlexBoss18 13kW Inverter

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Product Highlights

Suitable For

  • RESIDENTIAL POWER SYSTEMS
  • HOME SOLAR SYSTEMS
  • CABINS & TINY HOMES
  • FAMILY HOMES & MANSIONS
  • OFF-GRID HOMESTEADS
  • EMERGENCY POWER
  • WHOLE HOME BACKUP
  • COMMERCIAL SYSTEMS
  • WHOLE OFFICE BACKUP
  • LEAD ACID REPLACEMENT

Features

  • ALL-WEATHER PROTECTION
  • AUTOMATIC SELF-HEATING
  • TOUCH SCREEN LCD DISPLAY
  • PASSIVE CELL BALANCING
  • INTEGRATED 600A BUSBARS
  • DUAL INTERNAL FIRE ARRESTORS
  • EMERGENCY DISCONNECT FUNCTION
  • ZERO MAINTENANCE REQUIRED
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EG4 48V PowerPro LiFePO4 Battery (14.3kWh-85.8kWh) + FlexBoss18 13kW 48V Split Phase AC Hybrid Inverter

EG4 48V PowerPro LiFePO4 Battery (14.3kWh-85.8kWh) + FlexBoss18 13kW 48V Split Phase AC Hybrid Inverter

The wall-mountable, all-weather EG4 PowerPro combined with the FLEXBOSS18 hybrid inverter offers an efficient and compact energy storage and management solution for your home or business. This system features a 14.3kWh battery capacity paired with a 13kVA inverter, making it ideal for those seeking energy security and savings on their electric bill.

Built for durability and reliability, the PowerPro comes equipped with an advanced Battery Management System (BMS) that includes auto cell-balancing and a self-heating function to maintain optimal performance even in harsh environmental conditions. The included conduit box ensures effortless cable management and a clean, professional installation.

The FLEXBOSS18 inverter boasts dual MPPT inputs for efficient integration with solar arrays up to 18kW. Featuring UPS mode for seamless backup power and peak shaving capabilities, it guarantees stable power supply during grid outages or fluctuations.

Certified to UL9540A, UL1973, and UL1741 standards, this kit meets the highest safety and performance requirements. Its compact design, high efficiency, and ease of installation make the EG4 ESS PowerPro-FLEXBOSS18 system a reliable choice for those looking to maximize energy independence and protect their investment long-term.

Specifications:

EG4 48V 14.3kWh PowerPro LiFePO4 Battery
System Voltage 48V
Nominal Voltage 51.2V
Chemistry LiFePO4
kWh Capacity 14.34kWh
Ah Capacity 280Ah
Charging Voltage Range 55.2 – 56.8V
Max Charge Voltage 56.8V
Operating Voltage Range 48 – 56.8V
Suggested Low Voltage Cutoff 48 – 50.8V
Cell Configuration 16S
Max Continuous Discharge Current 200A
Max Continuous Power 10240W
Max Discharge Peak Current 300A (Max 5 seconds)
Max Charge Current 200A
Charge Temperature Range 32°F – 113°F
Discharge Temperature Range -4°F – 122°F
Optimal Discharge Temperature Range 59°F – 95°F
Storage Temperature Range (SoC >50%) -4°F – 122°F
Weight 308.6 lbs
Dimension (DxWxH) 9.1 in x 22. 3 in x 34.6 in
Max Connections Up to (3) parallel connections
per (1) inverter
Protection Rating IP65 / NEMA 4X
Communications CANBus / RS485
Certifications UL9540A, UL1973, & UN38.3
EG4 FlexBOSS18 13kW 48V Split Phase AC Hybrid Inverter
AC INPUT
Nominal AC Voltage 120/240VAC | 120/208VAC
(L1/L2/N required)
Frequency 60 Hz (Default) | 50 Hz
Max. AC Current 54A @ 240V | 54A @ 208V
Max. AC Input Power 13000W
Max. AC Bypass 90A
AC GRID OUTPUT
Operating Voltage Range 180 – 270VAC
Output Voltage 120/240VAC | 120/208VAC
(L1/L2/N required)
Max. Output Current 66.7A
Output Frequency 60 Hz (Default) | 50 Hz
Nominal Output Power (without PV) 12000W @ 240V | 12000W @ 208V
Nominal Output Power (with PV) 16000W @ 240V | 13800kW @ 208V
Power Factor 0.99 (Full Load)
Reactive Power Adjustment Range -0.8 – 0.8 Leading Adjustable
Total Harmonic Distortion <5% (Full Load)
Transfer Time 20ms (Default) | 10ms
(Configurable) | 20ms (Parallel)
AC BACKUP / UPS OUTPUT
Rated Output Current 50A @ 240V | 57.7A @ 208V
Nominal Output Voltage 120/240VAC | 120/208VAC
Rated Output Power 12000W @ 240VAC | 12000W @ 208VAC
Peak Power 20000W (0.5 sec) | 15000W (1 sec)
12500W (6 min) | 11000W (12 min)
Operating Frequency 60 Hz (Default) | 50 Hz
Total Harmonic Distortion Voltage <5%
Transfer Time 20ms (Default) | 10ms
(Configurable) | 20ms (Parallel)
PV INPUT
No. of MPPTs 2
Inputs per MPPT 2 (MPPT 1) | 2 (MPPT 2)
Max. Usable Input Current 26A (MPPT 1) | 26A (MPPT 2)
Max. Short Circuit Input Current 31A (MPPT 1) | 31A (MPPT 2)
DC Input Voltage Range 100 – 600VDC
Unit Start-Up Voltage 200VDC
MPPT Operating Voltage Range 120 – 440VDC
Nominal MPPT Voltage 360VDC
Max. Utilized PV Array Power:18 18000W
Max. Recommended PV Input 18000W
Max. Efficiency 97.5% (PV to Grid) | 94.5% (PV to Battery)
| 94% (Battery to Grid)
Idle Consumption <65W
BATTERY
Nominal Voltage 48VDC
Voltage Range 40 – 60VDC
Max. Charge / Discharge Power 10000W
Recommended Battery
Capacity per Inverter		 >300Ah
OPERATING ENVIRONMENT
Operating / Storage Temperature
Range		 -13ºF – 140ºF (-25ºC – 60ºC)
Operating Altitude <6,561 ft (2000 m)
Relative Humidity 0 – 100%
Typical Noise Emission <50dB @ 3 ft
Design Topology High-Frequency / Transformerless
Protection Rating IP65 / NEMA 4X
Communications RS485 / CANBus / WiFi / 4G
Max. Parallel Connections 10
DIMENSIONS
Weight 115 lbs
Depth 11.2 in
Width 22.8 in
Height 30.5 in

PACKAGE INCLUDES

EG4 48V 14.3kWh PowerPro LiFePO4 Battery + FlexBoss18 13kW 48V Split Phase AC Hybrid Inverter

EG4 48V 14.3kWh PowerPro LiFePO4 Battery

x 1

Mounting Bracket

x 1

X Bracket

x 1

Concrete Expansion Bolts

x 6

Red & Black Battery to Inverter Power Cables (3.3 FT)

x 2

Battery to Inverter Comm Cable (5 FT)

x 1

EG4 PowerPro Conduit Box

x 1

EG4 FlexBOSS18 13kW 48V Split Phase AC Hybrid Inverter

x 1

Product Documents:

EG4 48V 14.3kWh PowerPro LiFePO4 Battery User Manual

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EG4 48V 14.3kWh PowerPro LiFePO4 Battery Installation Guide

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EG4 48V 14.3kWh PowerPro LiFePO4 Battery Specification Sheet

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EG4 13kW 48V Split Phase AC Hybrid Inverter User Manual

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EG4 FlexBOSS18 13kW 48V Split Phase AC Hybrid Inverter Specification Sheet

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EG4 FlexBOSS18 13kW 48V Split Phase AC Hybrid Inverter Certification Of Compliance

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